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arXiv · 1001.1048

Supercurrent in superconducting graphene

N. B. Kopnin·E. B. Sonin
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Abstract

The problem of supercurrent in superconducting graphene is revisited and the supercurrent is calculated within the mean-field model employing the two-component wave functions on a honeycomb lattice with pairing between different valleys in the Brillouin zone. We show that the supercurrent within the linear approximation in the order-parameter-phase gradient is always finite even if the doping level is exactly zero.

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N. B. Kopnin, E. B. Sonin. 2010-01-07. Supercurrent in superconducting graphene. https://doi.org/10.1103/physrevb.82.014516

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